Enjoying the 'Polar Vortex'? Stand by for more. (+video)

More cold is on the way for already-frozen portions of the United States. Combined with gusty winds, these temperatures will result in life-threatening wind chill values as low as 60 degrees below zero, reports the National Weather Service.

Except for those crazy guys with their shirts off, most football fans at Lambeau Field for the Packers-49ers game Sunday afternoon in Green Bay, Wisconsin, were bundled up to the eyebrows, some of them gathered around parking lot fires set to warm their tailgate parties.

“The coldest temperatures in almost two decades will spread into the northern and central US today behind an arctic cold front. Combined with gusty winds, these temperatures will result in life-threatening wind chill values as low as 60 degrees below zero. Also, heavy snow will develop from the eastern Plains to the Great Lakes today, with up to a foot of accumulation possible.”

As the Weather Channel continues the narrative reminiscent of scenes of the Russian steppes from “Dr. Zhivago” …..

“Morning lows Monday will be in the 20s and 30s below zero over much of eastern Montana, North Dakota, northeast South Dakota, Minnesota, northwest Illinois, and Wisconsin. Relentless northwest winds of 15 to 35 mph (depending on location) will make this an exceptionally dangerous cold, sending wind chills into the minus 50s and even minus 60s across much of this region. At these levels, any exposed skin can suffer frostbite in as little as 5 minutes!